How do you feel about your weakness?

[Man of Ethics]

Sure. In some places, female genital mutilation is legal. However, who's going to argue the justness of such a thing?

Or child marriage. It might be legal in some locations, but who's going to argue the justness of it?

These practices are absolutely unjust.

In some cultures even sacrifice of the first-born son was legal. It was not only legal, but it was viewed as a good act of pious parents.